The University has seems to like using boulders (as well as bollards) as a means of keeping traffic where it belongs. Some of these boulders made it into the picture of the day.
|Chain of Rocks
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kamoranakrre wonders about these boulders, though, since there is a road on both sides of them and it isn't hard to get a car into any arbitrary location in the grass there, and various service vehicles have been known to just back down the sidewalk in the foreground, anyway.